吊车梁计算书(国外英文资料).docVIP

吊车梁计算书(国外英文资料) Crane beam calculation book One. Design data Crane situation: 1 crane; No. 3 working system: light level, hook form: hard hook; Starting weight: Q = 20 tons, car weight: g = 1 ton; Maximum wheel pressure: Pmax = 100 1000 ox minimum wheel pressure: Pmin = 20 thousand cattle The number of wheels on the side of the crane: n = 2 crane wheel spacing: a1 = 3m Q235B steel Type of support: flat plate; Crane span: L = 6m Crane beam calculation length: Ly = 6m Track height: 0.14 Allowable deflection ratio: 1/600 = 0.001667 Two. Design loads and internal forces Consider the increase coefficient of the weight of the track and the weight of the crane Dynamic coefficient: 1.05; Vertical load standard: P = 1.02 x 1.05 * 100 = 107.1 thousand cattle Vertical load design value: P = 1.4 x 107.1 = 149.94 Horizontal load standard value: T = 0.1 times (200 + 10) / 2 = 10.5 thousand cattle Horizontal load design value: T = 1.4 by 10.5 = 147,000 cattle The maximum vertical design of the crane beam: Mmax = 253.024 millet The maximum vertical design of the crane beam design is the corresponding design shear force: V = 112.455 thousand cattle The maximum design shear strength of the beam ends of the crane: Vmax = 224910 cattle The maximum horizontal design of the crane beam: Mt = 24.806, 000 newtons Three. Section characteristics Crane girder height h = 56cm Thickness t = 1.2 cm Upper flange width bf = 32cm Upper flange thickness of tf = 1.4 cm Lower flange width bf1 = 32cm The lower flange thickness tf1 = 1.4 cm The area of the crane beam area A = 153.44 cm2; The moment of inertia of the crane beam X = 81849.495 cm4; The inertia moment of the Y-axis of the crane beam. Crane beam X axis resistance moment Wx = 2923.196 cm3; The crane beams the Y-axis resistance. The inertia of the beam X axis of the crane is 23.096 cm; The inertia of the Y-axis of the crane beam is 7.063 cm. Maximum area of the crane girder is Smax = 1647.576 cm3; 4. Check 1 strength checking: The upper margin